Russian President
Dmitry Medvedev said Sunday he was alarmed by U.S. assertions
that Iran may have
enough fuel for two nuclear
weapons and warned that if confirmed the Islamic Republic may face
new measures.

Central Intelligence
Agency Director Leon Panettatold ABC's "This Week" television program
that the agency thinks Iran has enough low-enriched uranium now for two
weapons, but that Tehran
would have to further enrich the material first.

"As to this information -- it needs to be checked," Medvedev told reporters
in Toronto, where he was attending the Group of 20 summit of rich and
emerging nations.

"In any case, such information is always alarming because today the
international community does not recognize the Iranian nuclear program
as transparent," Medvedev said.

Russian leaders rarely comment on CIA statements and Medvedev's sharp
comments indicate the gulf that has grown between Moscow and Tehran over
recent months.

The Kremlin and Tehran had a public row last month after Iranian President Mahmoud
Ahmadinejad admonished the Kremlin for bowing to what he said was
U.S. pressure to agree further sanctions.

Urged on by the Obama administration, the U.N. Security Council -- which includes Russia -- this month
passed a resolution to impose new sanctions on Iran over its nuclear
development.

"If it is shown that what the American special services say is true then
it will of course make the situation more tense, and I do not exclude
that this question would have to be looked at additionally," Medvedev
said.

The United States, key European
Union powers and Israel say Iran is trying to use its civilian
nuclear program to hide an attempt to create an atomic bomb, an assertion Tehran denies.

Russia has repeatedly called on Iran to remove the doubts that the
international community have and earlier this year one of Russia's top
security officials said that Western concerns were valid.

The CIA said that for Iran to have enough nuclear material for bombs, it would have
to enrich its low-enriched uranium.

"We would estimate that if they made that decision, it would probably
take a year to get there, probably another year to develop the kind of
weapons delivery system in order to make that viable," CIA chief Panetta
said.